/Engine/Source/Runtime/Experimental/Chaos/Public/Chaos/PBDRigidClusteredParticles.h
Compares byOtherSibling_ only, forTArray::FindByKey()_.
bool operator== ( const [TPBDRigidParticleHandle](API\Runtime\Chaos\Chaos\TPBDRigidParticleHandle)< T, 3 > * OtherSibling ) const